Piston-connecting rod.



Patented Aug. 10, 1909.

J. B. HiIcKs. PISTON CONNETING ROD. PPLIUATION FILED JAN. 22, 1909. 930,473.

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(M- l l INTO/Mlm JOHN-B. HICKS, OF HOUTON, TEXAS.

PIs'roN-coNNE-crmo non.l

Specification of Letters Patent.

y Patented Aug. 10, 190i.

Application flied January 22, 1909. Serial No. 473,687.

l citizen of the Unite-d States, re idipg at as are used vto connect the pistons o .engine iii Arespective cylinders, pistons 3 and type, the explosion .between pistons 3 and 4 and their respective cylinder heads 5 and. 6. These pistons are Houston, in the county of Harris and State of Texas, have invented certain new, and

useful Improvements in Piston-Connecting y Rods, of -which the following is a specification. ,Y

My invention relates to new and useful improvements in piston connectingl rods, and more` particularly to that 'class of sich rods f} tandem The object of thc invention is to provide a device of the character hereinafter-described, tliat-\vill automatically cool its/elf, by means of a ir passages arranged in a novel manner, through which currents of air, of the temperature of the surrounding atmosphere, are forced by the operation of the pis` tons themselves.

Another vfeature of theinvention resides in its novel construction whereby it is yield# ably held in friction with its packing in such a manner as to reduce allv unnecessary friction to a minimum. y

lilith the above and vother obje/ctsr in view, my invention has Aparticular relation to oer-l tain-novel features ofconstruction and operation, an example of which is described in this specification and illustrated in the accompanying drawings, which' are made a part heref, and wherein Figure 1 is a sectional view of my device, showing also a sectional View of the pistonsv connected thereby, the cylinders, wherein said pistons operate, and the packing for saidconnecting rod. Fig. 2 is an elevation of the core of the connecting rod, partially in section, and showing one means of.. attaching the same to its vco-acting parts. Fig. 3 is a partial. sectional view of the peripheral tubing of said connecting rod.

Referring now more particularly' to the drawings, the numeral 1 'designates a cylinder and 2 refers to a substantially similar cylinder working tandem thereto. In these crate. It is to be observed that these cylin' ders shown are of the internal combustion occurring in the space held in rigid connection lby means of my improved" connection` rod .which passes v1 T and 4tends longitudinal-ly 'and 12. l That end through cylindershead 5 operating in any suitable packing T.' This packing is held in lace in the usual manner, by means of a suitable stuffing box 8 carried by said cylin der head. l

The 'connecting rod comprises a core t) preferably of steel and a tubing 10, preferably of cast iron. This core is provided with a threaded shoulder 11- and asmooth shoulder 12.y The threaded shoulder 11 is adapted to engage with the threaded portion 13 of tubing l() and'at the same time the other end of said tubing, which is not threaded, is designed to fitovcr shoulder 12. Shoulder llshould'be made slightly lower than shoulder "12 so that itvwill readily pass through the tubing without coming in Contact with the sides thereof, until it contacts with threads 13, and the lshoulders 11 and t2 should'be such a distance apart that they will, simultaneously engage with. their 'respective tubing ends. This core extends beyond' these shoulders a suiicient dista-nce to engage pistons 3 and 4, and said pistons are secured tosaid core b v meansl of jam nuts 15 and 16, screwed on to the threaded ends 1S 'of these extensions or in sonic other suitable manner.. The tubing 10 is of sutiicient relative diameter withrespect to the Coret), and the shoulders 11 and 12 are of sufficient height to provide a tubular-space 1t) around said core and between the same and the tubing lt). This tubular space ex-I of the connecting rod between shoulders 11 of the tubing 10 which engages with shoulder 12 provided with a plurality of orifices 2O leading from the freel atmosphere chamber of cylinder 2 to tubular space l). These orifices are sutlicient in number to permit a free passage of air from this chamber to said tubular space. From the other end of space 19 a number of orifices 21 lead and connect the same with air outlet 22, leading Vfrom said orifices through. piston 3 to the free atmosphere` chamber -of cylinder 1. The cylinder 2gis provided with a port 23 whichlreadily admits a'ir, into the chamber of cylinder 2. This port may be provide with means for regulating the flow of the air through the same.

The operation of my device is as follows g-I-Upon the occurrence of an explosion the pistons are forced back toward the open the entire distance end of the cylinders and the atmosphere in frontof piston-4, unable to escape through port 23 is forced through orifices 2O into space 19 and escapes through orifices 21 and air outlet 22 to the .free air. As the movelment of the pistons is reversed the port 23,

ing the saine to become dry and also causingl a noxious odor and smoke. The tubing Iis also yieldable and therefore minimizes the friction with the 'bearing and thus the prime object of my invention, to wit; prevention of the heating of the rod is attained.

Suitable water chambers 2`1 are provided around each cylinder through which cool water circulates and the cylinders aie thus kept cool.

' The piston 3 has connection with the crank connecting rod 25 which transmits motion to crank wrist 2G and through it. to the driven machinery. y

While I have shown this specific form of my invent-ion; and described this pz'ii'ticular method oti its operation I desire to reserve the right to vary the form and operation thereot,l when that may become necessary, so

long as the principle of the invention is not departed from.

That I claim is 1. 'In a piston cmiecting'rod, a core and means for connecting the saine to a piston; one end of said core being provided with an inlet 'and outlet passage and perforatioiis leading from said passage to the exterior of said core, a tubing surrounding said core and t having a tubular passage way therethrough of a suiiicient diameter to al ow a passageway between said core and said tubing; means interposed between the core and tilbiiig for fixing theirireiation with each other; and iertorations liading throi-igh said tubing trom said passage-wav to the t'iee atmosphere, and located in the, end thereof oposite to the end of said core carrying said inlet and outlet passage. y

2. In a connecting rod, an inner core,` an outer tubing, a smooth shoulder near one end `aiid a threaded shoulder near the other end of said core, for maintaining a space between said tubing and said core, said tubing being provided with apertures at one end for the inlet of a fluid to, or the outlet of a tiuid from said space, and said core being provided witli an open end and openings through the walls thereofl leading from said space to said open end for the inlet of a fluid to or the. outlet of a fiuid from said space.

In testimony whereof I have signed my naine to this specification in the presence of two subscribing witnesses.

JOHN B. HICKS. Vitnessesz ERNEST C. GUY, L.\ Vicini Mmmm. 

